cnss2: Add firmware boot failure recovery for QCA6290

Add firmware boot failure (firmware download error or no response
from firmware after downloading) recovery for QCA6290 so that it
can recover in both mission mode and calibration mode.

Change-Id: Ie58e51f5fbbb263f332a1d0ea167d6490da0e1cc
Signed-off-by: Yue Ma <yuem@codeaurora.org>